Measurements employing 30 of flexion have not
been compared and validated with measurements
made with RSA24 due to technical difficulties.
However,in our study, 308 of flexion was considered of clinical
interest and was therefore included. Nonetheless, the
lack of validation should be taken into account.
The female population showed a significant
(p < 0.01) 10–20% larger range of total knee rotation
than the male population. There were no significant
differences between the age groups. However, a nonsignificant
decrease due to age was found within both
genders. The youngest female group (15–30 years)
showed the largest range of rotation of all different
gender and age groups, and in the male population the
smallest rotation was registered at 46–60 years of age,
and a small non-significant increase was noted beyond
60 years. This may be of clinical relevance, and should
be evaluated further in the future.